A3
Optolink
A4
Burner control unit
A5
Programming unit
A6
Coding card
A7
Connection adaptor
A8
LON communication module
A9
Internal extension H1
S1
ON/OFF switch
S2
Reset button
X ...
Electrical interfaces
!
Outside temperature sensor
?
Flow temperature sensor, low
loss header
%
Cylinder temperature sensor
Plug on the cable harness
sÖ
Internal circulation pump
sK
DHW circulation pump
or
External heating circuit pump
or
Circulation pump for cylinder
heating
dG
Gas solenoid valve
fÖ
Power supply
gD
External safety solenoid valve
(LPG)
lH
Power supply accessories and
Vitotrol 100
a-Ö
Fan motor
a-Ö
A Fan motor control
aYA
Gas pressure limiter
aVG
KM BUS
Connection and wiring diagram
–
external . . .
(cont.)
108
Designs
5692
673
GB
Содержание VITODENS 300-W
Страница 106: ...aND Water pressure sensor a Modulation coil Connection and wiring diagram internal cont 106 Designs 5692 673 GB...
Страница 107: ...A1 Main PCB A2 Power supply unit Connection and wiring diagram external connections 107 Designs 5692 673 GB...
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